Template:Hellmayr, 1904a

• Hellmayr, C.E. 1904. On new species of South American birds. Bulletin of the British Ornithologists' Club 14: 51–55. London. BHL  
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Nomenclatural acts

• Date of publication: 27 February 1904

New names

• Deconychura secunda = Certhiasomus stictolaemus secundus (p.51)
• Dysithamnus aroyae = Thamnophilus aroyae (p.52)
• Thamnophilus paraguayensis = Thamnophilus caerulescens paraguayensis (p.53)
• Formicivora orenocensis = Formicivora intermedia orenocensis (p.54)
• Serpophaga parambae = Myiopagis parambae (p.54)